I`m working about the external model interface of LabVIEW to let LabVIEW be able to use the model form a 3rd part software which is developed by my company.I have read the help of EMI,but don`t know the details about the function "EMI_GetDerivative".I assign a value to the derivative of a continuous state,but the output is zero when i assign the derivative to a output.I guess the solver clear the derivative everytime the LabVIEW Control Design and Simulation Module executes the cycle of the Callbacks functions.Am i right?Or the answer is other.THX
